#content{
    height: 400px;
    border: 2px solid #ccc;
    border-radius: 4px;
    display: none;
}

#login{
    display: block;
}

.alert{
    padding: 8px;
}

.con-item{
    margin: 6px 0 14px;
}

body{
    margin: 0 100px;
}